Commit | Line | Data |
---|---|---|
43e5396b DG |
1 | /* |
2 | * Copyright (C) 2013 - David Goulet <dgoulet@efficios.com> | |
3 | * | |
4 | * | |
5 | * This library is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU Lesser General Public License, version 2.1 only, | |
7 | * as published by the Free Software Foundation. | |
8 | * | |
9 | * This library is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License | |
12 | * for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU Lesser General Public License | |
15 | * along with this library; if not, write to the Free Software Foundation, | |
16 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
17 | */ | |
18 | ||
19 | package org.lttng.ust.jul; | |
20 | ||
21 | import java.nio.ByteBuffer; | |
22 | import java.nio.ByteOrder; | |
a15440fd | 23 | import java.lang.Object; |
43e5396b DG |
24 | import java.util.logging.Logger; |
25 | import java.util.ArrayList; | |
529e6def | 26 | import java.util.HashMap; |
43e5396b DG |
27 | import java.util.List; |
28 | import java.util.Enumeration; | |
29 | ||
30 | public interface LTTngSessiondCmd2_4 { | |
31 | /** | |
32 | * Maximum name length for a logger name to be send to sessiond. | |
33 | */ | |
34 | final static int NAME_MAX = 255; | |
35 | ||
a15440fd DG |
36 | /* |
37 | * Size of a primitive type int in byte. Because you know, Java can't | |
38 | * provide that since it does not makes sense... | |
39 | */ | |
40 | final static int INT_SIZE = 4; | |
41 | ||
43e5396b DG |
42 | public interface SessiondResponse { |
43 | /** | |
44 | * Gets a byte array of the command so that it may be streamed | |
45 | * | |
46 | * @return the byte array of the command | |
47 | */ | |
48 | public byte[] getBytes(); | |
49 | } | |
50 | ||
51 | public interface SessiondCommand { | |
52 | /** | |
53 | * Populate the class from a byte array | |
54 | * | |
55 | * @param data | |
56 | * the byte array containing the streamed command | |
57 | */ | |
58 | public void populate(byte[] data); | |
59 | } | |
60 | ||
61 | public enum lttng_jul_command { | |
62 | /** List logger(s). */ | |
63 | CMD_LIST(1), | |
64 | /** Enable logger by name. */ | |
65 | CMD_ENABLE(2), | |
66 | /** Disable logger by name. */ | |
67 | CMD_DISABLE(3); | |
68 | private int code; | |
69 | ||
70 | private lttng_jul_command(int c) { | |
71 | code = c; | |
72 | } | |
73 | ||
74 | public int getCommand() { | |
75 | return code; | |
76 | } | |
77 | } | |
78 | ||
79 | enum lttng_jul_ret_code { | |
80 | CODE_SUCCESS_CMD(1), | |
81 | CODE_INVALID_CMD(2), | |
82 | CODE_UNK_LOGGER_NAME(3); | |
83 | private int code; | |
84 | ||
85 | private lttng_jul_ret_code(int c) { | |
86 | code = c; | |
87 | } | |
88 | ||
89 | public int getCode() { | |
90 | return code; | |
91 | } | |
92 | } | |
93 | ||
94 | public class sessiond_hdr implements SessiondCommand { | |
95 | /** ABI size of command header. */ | |
96 | public final static int SIZE = 16; | |
97 | /** Payload size in bytes following this header. */ | |
98 | public long data_size; | |
99 | /** Command type. */ | |
100 | public lttng_jul_command cmd; | |
101 | /** Command version. */ | |
102 | public int cmd_version; | |
103 | ||
104 | public void populate(byte[] data) { | |
105 | ByteBuffer buf = ByteBuffer.wrap(data); | |
106 | buf.order(ByteOrder.BIG_ENDIAN); | |
107 | ||
108 | data_size = buf.getLong(); | |
109 | cmd = lttng_jul_command.values()[buf.getInt() - 1]; | |
110 | cmd_version = buf.getInt(); | |
111 | } | |
112 | } | |
113 | ||
114 | public class sessiond_enable_handler implements SessiondResponse, SessiondCommand { | |
115 | private final static int SIZE = 4; | |
116 | public String name; | |
a15440fd DG |
117 | public int lttngLogLevel; |
118 | public int lttngLogLevelType; | |
43e5396b DG |
119 | |
120 | /** Return status code to the session daemon. */ | |
121 | public lttng_jul_ret_code code; | |
122 | ||
123 | @Override | |
124 | public void populate(byte[] data) { | |
a15440fd DG |
125 | int data_offset = INT_SIZE * 2; |
126 | ||
43e5396b DG |
127 | ByteBuffer buf = ByteBuffer.wrap(data); |
128 | buf.order(ByteOrder.LITTLE_ENDIAN); | |
a15440fd DG |
129 | lttngLogLevel = buf.getInt(); |
130 | lttngLogLevelType = buf.getInt(); | |
131 | name = new String(data, data_offset, data.length - data_offset); | |
43e5396b DG |
132 | } |
133 | ||
134 | @Override | |
135 | public byte[] getBytes() { | |
136 | byte data[] = new byte[SIZE]; | |
137 | ByteBuffer buf = ByteBuffer.wrap(data); | |
138 | buf.order(ByteOrder.BIG_ENDIAN); | |
139 | buf.putInt(code.getCode()); | |
140 | return data; | |
141 | } | |
142 | ||
143 | /** | |
144 | * Execute enable handler action which is to enable the given handler | |
145 | * to the received name. | |
146 | * | |
147 | * @return Event name as a string if the event is NOT found thus was | |
148 | * not enabled. | |
149 | */ | |
529e6def | 150 | public String execute(LTTngLogHandler handler, HashMap enabledLoggers) { |
43e5396b DG |
151 | Logger logger; |
152 | ||
153 | if (name == null) { | |
154 | this.code = lttng_jul_ret_code.CODE_INVALID_CMD; | |
155 | return null; | |
156 | } | |
157 | ||
158 | /* Wild card to enable ALL logger. */ | |
159 | if (name.trim().equals("*")) { | |
160 | String loggerName; | |
161 | Enumeration loggers = handler.logManager.getLoggerNames(); | |
162 | while (loggers.hasMoreElements()) { | |
163 | loggerName = loggers.nextElement().toString(); | |
164 | /* Somehow there is always an empty string at the end. */ | |
165 | if (loggerName == "") { | |
166 | continue; | |
167 | } | |
168 | ||
529e6def DG |
169 | if (enabledLoggers.get(loggerName) != null) { |
170 | continue; | |
171 | } | |
172 | ||
43e5396b | 173 | logger = handler.logManager.getLogger(loggerName); |
a15440fd DG |
174 | handler.setLogLevel(loggerName, lttngLogLevel, |
175 | lttngLogLevelType); | |
43e5396b | 176 | logger.addHandler(handler); |
529e6def | 177 | enabledLoggers.put(loggerName, logger); |
43e5396b DG |
178 | } |
179 | this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD; | |
529e6def DG |
180 | /* |
181 | * Return the name as a new string so we can add the * event | |
182 | * name to the event list that we need to enable for new | |
183 | * Logger. | |
184 | */ | |
185 | return new String(name); | |
43e5396b DG |
186 | } |
187 | ||
188 | this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD; | |
189 | logger = handler.logManager.getLogger(name.trim()); | |
190 | if (logger != null) { | |
a15440fd DG |
191 | handler.setLogLevel(name.trim(), lttngLogLevel, |
192 | lttngLogLevelType); | |
43e5396b | 193 | logger.addHandler(handler); |
529e6def | 194 | enabledLoggers.put(name.trim(), logger); |
43e5396b DG |
195 | return null; |
196 | } else { | |
197 | return new String(name); | |
198 | } | |
199 | } | |
200 | } | |
201 | ||
202 | public class sessiond_disable_handler implements SessiondResponse, SessiondCommand { | |
203 | private final static int SIZE = 4; | |
204 | public String name; | |
205 | ||
206 | /** Return status code to the session daemon. */ | |
207 | public lttng_jul_ret_code code; | |
208 | ||
209 | @Override | |
210 | public void populate(byte[] data) { | |
211 | ByteBuffer buf = ByteBuffer.wrap(data); | |
212 | buf.order(ByteOrder.BIG_ENDIAN); | |
213 | name = new String(data, 0, data.length); | |
214 | } | |
215 | ||
216 | @Override | |
217 | public byte[] getBytes() { | |
218 | byte data[] = new byte[SIZE]; | |
219 | ByteBuffer buf = ByteBuffer.wrap(data); | |
220 | buf.order(ByteOrder.BIG_ENDIAN); | |
221 | buf.putInt(code.getCode()); | |
222 | return data; | |
223 | } | |
224 | ||
225 | /** | |
226 | * Execute disable handler action which is to disable the given handler | |
227 | * to the received name. | |
228 | */ | |
229 | public void execute(LTTngLogHandler handler) { | |
230 | Logger logger; | |
231 | ||
232 | if (name == null) { | |
233 | this.code = lttng_jul_ret_code.CODE_INVALID_CMD; | |
234 | return; | |
235 | } | |
236 | ||
237 | /* Wild card to disable ALL logger. */ | |
238 | if (name.trim().equals("*")) { | |
239 | String loggerName; | |
240 | Enumeration loggers = handler.logManager.getLoggerNames(); | |
241 | while (loggers.hasMoreElements()) { | |
242 | loggerName = loggers.nextElement().toString(); | |
243 | /* Somehow there is always an empty string at the end. */ | |
244 | if (loggerName == "") { | |
245 | continue; | |
246 | } | |
247 | ||
248 | logger = handler.logManager.getLogger(loggerName); | |
249 | logger.removeHandler(handler); | |
250 | } | |
251 | this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD; | |
252 | return; | |
253 | } | |
254 | ||
255 | logger = handler.logManager.getLogger(name.trim()); | |
256 | if (logger == null) { | |
257 | this.code = lttng_jul_ret_code.CODE_UNK_LOGGER_NAME; | |
258 | } else { | |
259 | logger.removeHandler(handler); | |
260 | this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD; | |
261 | } | |
262 | } | |
263 | } | |
264 | ||
265 | public class sessiond_list_logger implements SessiondResponse { | |
266 | private final static int SIZE = 12; | |
267 | ||
268 | private int data_size = 0; | |
269 | private int nb_logger = 0; | |
270 | ||
271 | List<String> logger_list = new ArrayList<String>(); | |
272 | ||
273 | /** Return status code to the session daemon. */ | |
274 | public lttng_jul_ret_code code; | |
275 | ||
276 | @Override | |
277 | public byte[] getBytes() { | |
278 | byte data[] = new byte[SIZE + data_size]; | |
279 | ByteBuffer buf = ByteBuffer.wrap(data); | |
280 | buf.order(ByteOrder.BIG_ENDIAN); | |
281 | ||
282 | /* Returned code */ | |
283 | buf.putInt(code.getCode()); | |
284 | buf.putInt(data_size); | |
285 | buf.putInt(nb_logger); | |
286 | ||
287 | for (String logger: logger_list) { | |
288 | buf.put(logger.getBytes()); | |
289 | /* NULL terminated byte after the logger name. */ | |
290 | buf.put((byte) 0x0); | |
291 | } | |
292 | return data; | |
293 | } | |
294 | ||
295 | /** | |
296 | * Execute enable handler action which is to enable the given handler | |
297 | * to the received name. | |
298 | */ | |
299 | public void execute(LTTngLogHandler handler) { | |
300 | String loggerName; | |
301 | ||
302 | Enumeration loggers = handler.logManager.getLoggerNames(); | |
303 | while (loggers.hasMoreElements()) { | |
304 | loggerName = loggers.nextElement().toString(); | |
305 | /* Somehow there is always an empty string at the end. */ | |
306 | if (loggerName == "") { | |
307 | continue; | |
308 | } | |
309 | ||
310 | this.logger_list.add(loggerName); | |
311 | this.nb_logger++; | |
312 | this.data_size += loggerName.length() + 1; | |
313 | } | |
314 | ||
315 | this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD; | |
316 | } | |
317 | } | |
318 | } |